Do any of you guys with HID's have a flickering problem with your lights? when driving

 

are they going on and off or just look like the bulb is shaking? mine were vibrating but i didnt use the retaining spring/nut thing that pressed the halogen bulbs in the light and held them steady. after some assessing i realized there was a way to get this retainer to hold my hid in place and it stopped the shaking or flickering if this is what you are referring to.

these arent the ones for an f150 but this is what i'm talking about i hope it gives you and idea of what im talking about

http://cgi.ebay.com/ebaymotors/ws/eB...d=110384831568

 

Yeah it looks like the bulb is shaking. I did put those retainers back in there...I wonder if they fell off Ill check them today. I know its only my left headlight that does this

 

install was easy, mine flicker a bit but it dosnt take away from brightness, kinda hard to explain, but they only cost me 60 for the whole kit and they dont look cheap they look good as hell lol